Process of preparing a mass for making briquets.



UNITED STATES PA'IENT OFFICE.

BERNHARD' WAGNER, OF BERLIN, GERMANY.

PROCESS OF PREPARING A MASS FOFIMAKING BRIQUETS.

Specification of Letters Patent.

Patented Aug. 21, 1906.

Application filed February 3, 1905. Serial No. 248,949-

To all whom it may concern.-

Be it known that I, BERNHARD WAGNER, merchant, a subject of the King ofPrussia, residing at No. 26 Mauerstrasse, Berlin, German Empire, haveinvented new and useful Improvements in Processes of Preparin a Mass forMaking Briquets, of which the ol- -lowing is a specification.

My invention relates to a process of preparing a mass for makingso-called patent uel f or briquets and which meets all the requirementswhich can be made of this class of material.

In carr ing out my process I proceed as follows: I heat the material(such as anthra cite) to be converted into briquets up to about 140Centigrade, and I take a cementing or binding a cut which is soluble inwater-for examp e, waste lyes from cellulosefactories-and heat it up toabout 60 centigrade in a separate vessel. Thereupon I mingle the twosubstances in a mixing apparatus while maintaining such a temperaturethat the mass can be fed to the press at about 100 centigrade.

For the purpose of maintaining the mass at the-proper degree oftemperature in the mixing apparatus and of enabling the anthracite orother material used and the binding medium to be as intimately mingledas possible superheated steam may advantageously be conducted directinto the mixer.

The briquets after leaving the press should. be rendered weatherproof bybeing heated (if possible to the exclusion of air) until the said indingagent has been coked. By the separate heating of the mass and thebinding medium a perfect intimate n 'xture can be obtained for thesubsequent forming of the mass, said perfect intimate mixture being avery important feature. It is also essential that the bringing togetherof the separatelyheated mixture and binding medium, which mixture andbindin medium have been previously heated to (iflerent degrees oftemperature for the reason that the mixture of i the mass and thebinding medium should be maintained at a temperature of 100 centigradewhen placed in the mold, so that the mass fills out and conforms to thewalls of the mold so well that quite a solid form is given to the mass.

It is essential that the mixture be fitted properly to the forms and toform a solid composition, so that the briquets so made have the requiredsolidity and strength for the following reason: The briquets after beingtaken out of the forms have to be brought to a'certain apparatus whichturns the watersoluble binding medium into coal. During thetransportation, to this apparatus the briquets are subjected to certainmanipulations which they could not stand if the mass did not possess acertain degree of solidity.

After the briquets are pressedthat is to say,

after they are put out by the lowest stamps of the pressth'ey aresubjected to shakings, for they are taken from the forming-plate to theapparatus which turns them unto coal by placing them on an elevatdr. Itis therefore evident that only by my process can briquets be transportedmechanically without danger of breaking after leaving the forms.

Having thus described my invention, I claim as new The process ofpreparing a mass for the manufacture of hriquets, consisting in heatinga mass of material suitable for briquetmalting to substantially 140centigrade, and in heating a suitable binding a out, which is soluble inwater, to substantia ly 60 centigrade in a separate vessel, and inmingling the two substances, while maintaining the mixture at such atemperature that it can be conducted to a press at a temperature ofsubstantially 100 ccutigrade, all substantially as described.

In witness whereof I have hereunto signed my name, this 10th d ay ofJanuary, 1905, in the presence of two subscribing witnesses.

B E lt N HARD WAGNER.

Witnesses:

HENRY HAsrnR, WoLnEMAR IIAUPT

